CN106098439B - Circuit-breaker switching on-off electromagnet intelligent control module - Google Patents
Circuit-breaker switching on-off electromagnet intelligent control module Download PDFInfo
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- CN106098439B CN106098439B CN201610543922.6A CN201610543922A CN106098439B CN 106098439 B CN106098439 B CN 106098439B CN 201610543922 A CN201610543922 A CN 201610543922A CN 106098439 B CN106098439 B CN 106098439B
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- circuit
- coil
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- controller
- electromagnet
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
Abstract
The present invention relates to a kind of circuit-breaker switching on-off electromagnet intelligent control modules, including sequentially connected input power, current rectifying and wave filtering circuit and electronic power switch；The output end of the electronic power switch is connect with the input terminal of closing coil and opening coil respectively；The closing coil and the output end of opening coil are connect with the normally opened contact of single-pole double-throw relay and normally-closed contact respectively, and the non-moving end of the single-pole double-throw relay and the input terminal of Hall current sensor connect；The output end of the Hall current sensor is connect with controller；The connection of the input terminal of the controller and isolated drive circuit, the output end of the isolated drive circuit connect the closed-loop control completed to coil current with electronic power switch.The present invention carries out closed loop chop control to the coil current of electromagnet for controlling switch, fundamentally changes the energisation mode of electromagnet for controlling switch.
Description
Technical field
The present invention relates to a kind of circuit-breaker switching on-off electromagnet intelligent control modules.
Background technique
Electric power is the lifeblood of the national economic development, is the core of national strategy energy general plan.With national economy
It continues to develop and the continuous advancement of science and technology, the social requirement to power quality is higher and higher, and power distribution network is as entire electricity
The end of net is one of the key link of power grid safety work.There are a large amount of 10kV, 35kV open circuits in distribution network
Device is one of most important device for switching equipment in system for distribution network of power, controls and protect the normal fortune of entire power distribution network
Row.The operation of its switching on and off is after sincere sub- tripping, to discharge bullet come the sincere son of temporary impact tripping by the movement of switching on and off electromagnet
The energy of spring stored energy mechanism, and then the operating mechanism movement of breaker is driven, to complete the switching on and off of contact.That is,
Switching on and off electromagnet is not the direct driving force of breaker actuation, is only used for the energy release of energy-stored spring, switching on and off electricity
Magnet coil only need in short-term excitation current enough instantaneous impacts are provided, therefore, coil is often pressed to be led in short-term
Electricity design, conduction time is more than to be possible to burn out for 2 seconds, after the completion of the switching on and off movement of breaker, usually relies on auxiliary contact
Movement come disconnect switching on and off coil current in time, avoid burning out.
It can be seen that: switching on and off electromagnet is the first order control element of high-voltage circuit-breaker operating mechanism, the institute of breaker
There is defencive function that will finally realize by the movement of the electromagnet, but for various reasons, circuit breaker operation mechanism may
There is bite, act the problems such as not in place or auxiliary contact adhesion, so that switching on and off coil is powered and is burnt for a long time, reduction is matched
The power supply reliability of electric system.Once and coil burnout, then must scene investigation burn down causes, more emat coil, later to repairing
Breaker afterwards carries out adjustment and parameter tuning again, can put into operation, greatly prolong the failure recovery time of distribution system.
Currently, for this multiple malfunctions of switching on and off coil burnout more take improve secondary loop of breaker measure: increase the time after
Electric appliance, intermediate relay or other delay breaking devices, disconnect switching on and off wire loop within the set time, prevent it long-term
It is powered and burns out.
At present in a power distribution system, more and more intelligent breakers are equally existed, intelligent breaker is mainly two
Using the electrical secondary system of microprocessor technology and sensor technology composition Novel intelligent breaker, main feature is for secondary side:
The execution unit being made of power electronic technique, Digital Control device is instead of in the past complicated mechanical structure；Utilize auxiliary
Relay is simplified mechanical structure, to realize electronic type actuating, while but also the reliability of mechanical system greatly mentions
It is high.The basic frame structure of intelligent breaker is mostly intelligent controller+conventional circuit breaker ontology at present, and in conventional circuit breaker sheet
In body, switching on and off electromagnet still relies on being controlled after insurance system and auxiliary contact for intelligent breaker, therefore there are still
The risk of coil burnout.
In addition, breaker " jump " failure is one of worst failure of breaker, the process of generation is as follows: due to automatic
The reason of device contact or control switch self-characteristic, after the completion of breaker switching-on operation, divide-shut brake starting-up later time contact is not
It disconnects immediately, closing pulse always exists, at this point, if the system failure (for example there is pre- volt short circuit current), protection act breaks
The tripping of road device, but since order of closing a floodgate does not release, then breaker can close a floodgate again after tripping, if it is permanent fault,
Protection can will switch tripping again, and continuing existing closing pulse will make breaker close a floodgate again, so recycle, open circuit occurs
Lasting " divide-close " phenomenon, referred to as the jump failure of breaker of device.The chattering of breaker continues, and can make breaker
It damages, cause the accident expansion.
Currently, taking the measure for improving secondary loop of breaker for this most common failure of switching on and off coil burnout: increasing more
Add the time relay, intermediate relay or other delay breaking devices, disconnects switching on and off wire loop within the set time, prevent
Only it is electrified for a long time and burns out；And it is directed to " jump " failure of breaker, it must equally install anti-jump relay additional in operation circuit
Device protective loop.The above measure undoubtedly increases the complexity in secondary relay protection circuit, for electric system introduce it is unreliable because
Element.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of circuit-breaker switching on-off electromagnet intelligent control module, to point
The coil current of switching electromagnet carries out closed loop chop control, fundamentally changes the energisation mode of electromagnet for controlling switch.
To achieve the above object, the present invention adopts the following technical scheme: a kind of circuit-breaker switching on-off electromagnet intelligent control
Module, it is characterised in that: including sequentially connected input power, current rectifying and wave filtering circuit and electronic power switch, input power warp
Become stable DC voltage after rectifying and wave-filtering, DC voltage generates high frequency square wave voltage through electronic power switch copped wave；It is described
The output end of electronic power switch is connect with the input terminal of closing coil and opening coil respectively, and the high frequency square wave voltage is applied
The both ends for being added in closing coil and opening coil obtain stable coil current；The output end of the closing coil and opening coil
It is connect respectively with the normally opened contact of single-pole double-throw relay and normally-closed contact, the non-moving end of the single-pole double-throw relay and Hall
The input terminal of current sensor connects；The output end of the Hall current sensor is connect with controller, for coil current
It carries out isolation detection and will test result input controller, hysteresis current operation is carried out inside the controller；The controller
It is connect with the input terminal of isolated drive circuit, the output end of the isolated drive circuit is connect with electronic power switch, controller
Output drive signal acts on electronic power switch through isolated drive circuit, to the high frequency voltage of closing coil and opening coil into
Row is adjusted, and completes the closed-loop control to coil current.
It further, further include local divide-shut brake interface, one end of the local divide-shut brake interface is connect with controller, separately
One end is connect with the input terminal of electronics leap preventing logic circuit, and the output end and relay of the electronics leap preventing logic circuit drive
The input terminal connection of dynamic circuit, another input terminal of the relay drive circuit are connect with controller, the relay driving
The output end of circuit is connect with the single-pole double-throw relay, for driving the single-pole double-throw relay.
It further, further include auxiliary contact observation circuit, the auxiliary contact observation circuit is connect with controller, is used for
The state for monitoring auxiliary contact, to the tripping failure progress of breaker and alarm.
It further, further include coil temperature observation circuit, the coil temperature observation circuit is connect with controller, is used for
Closing coil and opening coil temperature are monitored, overheating protection is carried out.
It further, further include voltage detecting circuit, one end of the voltage detecting circuit is connect with controller, the other end
It is connect with current rectifying and wave filtering circuit, it is whether normal for monitoring input power.
Further, further include man-machine interface and communication interface, the man-machine interface and communication interface respectively with controller
Connection, the man-machine interface is for being locally located related operating parameter and showing current operating conditions；The communication interface is used
In incorporating in existing dispatching remote control system, electromagnet for controlling switch is remotely controlled, and current operating conditions are fed back to
Controller.
Compared with the prior art, the invention has the following beneficial effects:
1, the present invention carries out closed loop chop control to switching on and off magnet spool electric current, can accurately control switching on and off
Magnet spool excitation current and excitation time, avoid coil burnout；
2, the present invention can carry out on-line tuning to coil excitation electric current and excitation time, once be remotely controlled failure in breaker
In the case where, by remotely-or locally resetting, coil excitation electric current and excitation time are increased, secondary remote control point is carried out in time, closes
Lock improves the success rate of remote control；
3, by the present invention in that making opening coil and closing coil share a set of control back with a single-pole double-throw relay
Road both reduced costs, while realizing " the electronics leap preventing function " of breaker；
4, the present invention can very easily incorporate circuit integrity detection function, and detection control module whether there is failure.
Detailed description of the invention
Fig. 1 is system control principle drawing of the invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is please referred to, the present invention provides a kind of circuit-breaker switching on-off electromagnet intelligent control module, it is characterised in that: packet
Sequentially connected input power, current rectifying and wave filtering circuit and electronic power switch are included, becomes steady after the rectified filtering of input power
DC voltage, DC voltage generates high frequency square wave voltage through electronic power switch copped wave；The output of the electronic power switch
End is connect with the input terminal of closing coil and opening coil respectively, and the high frequency square wave voltage is applied to closing coil and separating brake
The both ends of coil obtain stable coil current；The closing coil and the output end of opening coil respectively with single-pole double throw relay
The normally opened contact and normally-closed contact of device connect, the non-moving end of the single-pole double-throw relay and the input terminal of Hall current sensor
Connection；The output end of the Hall current sensor is connect with controller, for carrying out isolation detection to coil current and will examine
Result input controller is surveyed, carries out hysteresis current operation inside the controller；The controller and isolated drive circuit it is defeated
Enter end connection, the output end of the isolated drive circuit is connect with electronic power switch, and controller output drive signal is through being isolated
Driving circuit acts on electronic power switch, and the high frequency voltage of closing coil and opening coil is adjusted, and completes to coil
The closed-loop control of electric current.
In this present embodiment, controller uses Wei Xin company dsPIC " GS " chip series chip, i.e. dsPIC control in Fig. 1
System processed.When carrying out closing operation, controller driving single-pole double-throw relay is closed normally opened contact, and closing coil is accessed
Control loop；When sub-switching operation, single-pole double-throw relay resets, and opening coil is accessed control loop.Opening coil and conjunction
The a set of control circuit of brake cable circle time-sharing multiplex, not only reduced costs, but also facilitated the realization of electronics anti-bouncing function.In addition, making separating brake
The connection of the normally-closed contact of coil and single-pole double-throw relay, can have faster separating brake corresponding speed compared with closing a floodgate, and improve
The safety of distribution system, entire control module is simple and reliable, and integrated level is high.
Module in the case where primary remote control failure, can the operating parameter to module remotely-or locally reset, increasing
Add excitation current and carry out secondary remote control after the excitation time in time, improves the success rate of breaker remote divide-shut brake, avoid open circuit
Long-time, large area blackout caused by device tripping.It in this present embodiment, further include local divide-shut brake interface, the local
One end of divide-shut brake interface is connect with controller, and the other end is connect with the input terminal of electronics leap preventing logic circuit；The electronics
The input terminal of the output end of leap preventing logic circuit and relay drive circuit connects, the relay drive circuit it is another defeated
Enter end to connect with controller, the output end of the relay drive circuit is connect with the single-pole double-throw relay, for driving
The single-pole double-throw relay.Local divide-shut brake interface can receive the divide-shut brake level pulse of external circuit input, Huo Zhezhi
It connects and switching on and off control on the spot is carried out to electromagnet for controlling switch；It, will after local divide-shut brake interface is connected to the control pulse of external circuit
Signal is passed to electronics leap preventing logic circuit and carries out the anti-jump control of electronics: if closely following a sub-switching operation after a closing operation
When, module control switching electromagnet first acts, and controls tripping electromagnet movement after the completion of closing a floodgate again, completes the primary of pulse request
Breaker closing-separating brake movement；But this order of closing a floodgate of front will not cause secondary breaker switching-on operation, lead at this time
It crosses electronics leap preventing logic circuit and relay status is locked in reset state, prevent from closing a floodgate again；If carrying out second
Closing operation, then previous combined floodgate order must first disappear, and re-emit again later, to prevent the generation of jump failure.
Phenomena such as will cause the increase of mechanism friction power, abrasion and aging due to breaker longtime running generates breaker and refuses
Dynamic failure, and then auxiliary contact is caused to be difficult to effective action；It in this present embodiment, further include auxiliary contact observation circuit, it is described
Auxiliary contact observation circuit is connect with controller, for monitoring the state of auxiliary contact, the tripping failure of breaker is carried out and
Alarm.
It in this present embodiment, further include coil temperature observation circuit, the coil temperature observation circuit is connect with controller,
For monitoring closing coil and opening coil temperature, overheating protection is carried out.
It further, further include voltage detecting circuit, one end of the voltage detecting circuit is connect with controller, the other end
It is connect with current rectifying and wave filtering circuit, it is whether normal for monitoring input power.
Further, further include man-machine interface and communication interface, the man-machine interface and communication interface respectively with controller
Connection, the man-machine interface is for being locally located related operating parameter and showing current operating conditions；The communication interface is used
In incorporating in existing dispatching remote control system, electromagnet for controlling switch is remotely controlled, and current operating conditions are fed back to
Controller.
It further, further include afterflow module, the afterflow module can be in electromagnet for controlling switch afterflow breaking course
Coil applies certain negative pressure, accelerates breaking course.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (4)
1. a kind of circuit-breaker switching on-off electromagnet intelligent control module, it is characterised in that: including sequentially connected input power, whole
Filter circuit and electronic power switch are flowed, becomes stable DC voltage after the rectified filtering of input power, DC voltage is through electricity
Power electronic switch copped wave generates high frequency square wave voltage；The output end of the electronic power switch respectively with closing coil and separating brake
The input terminal of coil connects, and the both ends that the high frequency square wave voltage is applied to closing coil and opening coil are obtained stable line
Loop current；The closing coil and the output end of opening coil respectively with the normally opened contact of single-pole double-throw relay and normally-closed contact
Connection, the non-moving end of the single-pole double-throw relay and the input terminal of Hall current sensor connect；The Hall current sensing
The output end of device is connect with controller, described for carrying out isolation detection to coil current and will test result input controller
Hysteresis current operation is carried out inside controller；The connection of the input terminal of the controller and isolated drive circuit, the isolation drive
The output end of circuit is connect with electronic power switch, and controller output drive signal acts on power electronics through isolated drive circuit
Switch, is adjusted the high frequency voltage of closing coil and opening coil, completes the closed-loop control to coil current；
It further include local divide-shut brake interface, one end of the local divide-shut brake interface is connect with controller, and the other end and electronics are anti-
The input terminal connection of jump logic circuit, the input of the output end and relay drive circuit of the electronics leap preventing logic circuit
End connection, another input terminal of the relay drive circuit are connect with controller, the output end of the relay drive circuit
It is connect with the single-pole double-throw relay, for driving the single-pole double-throw relay；Local divide-shut brake interface external electrical
The divide-shut brake level pulse of road input, or switching on and off on the spot directly is carried out to electromagnet for controlling switch and is controlled；Local divide-shut brake connects
After mouth is connected to the control pulse of external circuit, signal is passed to electronics leap preventing logic circuit and carries out the anti-jump control of electronics: if
When closely following a sub-switching operation after one closing operation, module control switching electromagnet is first acted, and is controlled again point after the completion of closing a floodgate
Lock electromagnet action completes a breaker closing-separating brake movement of pulse request；But this order of closing a floodgate of front will not draw
Secondary breaker switching-on operation is played, relay status is locked in by reset shape by electronics leap preventing logic circuit at this time
State prevents from closing a floodgate again；If carrying out second of closing operation, previous combined floodgate order must first disappear, and weigh again later
It is new to issue, to prevent the generation of jump failure；
It further include auxiliary contact observation circuit, the auxiliary contact observation circuit is connect with controller, for monitoring auxiliary contact
State, the tripping failure of breaker is carried out and alarm.
2. circuit-breaker switching on-off electromagnet intelligent control module according to claim 1, it is characterised in that: further include coil
Temperature observation circuit, the coil temperature observation circuit is connect with controller, for monitoring closing coil and opening coil temperature,
Carry out overheating protection.
3. circuit-breaker switching on-off electromagnet intelligent control module according to claim 1, it is characterised in that: further include voltage
One end of detection circuit, the voltage detecting circuit is connect with controller, and the other end is connect with current rectifying and wave filtering circuit, for monitoring
Whether input power is normal.
4. circuit-breaker switching on-off electromagnet intelligent control module according to claim 1, it is characterised in that: further include man-machine
Interface and communication interface, the man-machine interface are connect with controller respectively with communication interface, and the man-machine interface is used in local
Related operating parameter is set and shows current operating conditions；The communication interface is used to incorporate in existing dispatching remote control system,
Electromagnet for controlling switch is remotely controlled, and current operating conditions are fed back into controller.
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| CN201610543922.6A CN106098439B (en) | 2016-07-12 | 2016-07-12 | Circuit-breaker switching on-off electromagnet intelligent control module |
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| CN201610543922.6A CN106098439B (en) | 2016-07-12 | 2016-07-12 | Circuit-breaker switching on-off electromagnet intelligent control module |
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| CN106098439A CN106098439A (en) | 2016-11-09 |
| CN106098439B true CN106098439B (en) | 2018-12-25 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877274B (en) * | 2017-04-21 | 2019-03-01 | 贵州电网有限责任公司 | A kind of guard method of the control circuit of high-voltage circuit breaker intelligence burn-out-proof module based on DSP |
| CN109859988B (en) * | 2017-11-30 | 2020-05-08 | 株洲中车时代电气股份有限公司 | Relay control circuit |
| CN108614149B (en) * | 2018-05-09 | 2020-07-07 | 福州大学 | Data acquisition method for high-frequency signal of electromagnetic switch |
| DE102018221033A1 (en) * | 2018-12-05 | 2020-06-10 | Siemens Aktiengesellschaft | Low voltage protection switchgear |
| CN109782657B (en) * | 2018-12-26 | 2020-07-28 | 河南平高电气股份有限公司 | Circuit breaker divide-shut brake integrated control system |
| CN109712846B (en) * | 2019-01-31 | 2020-04-10 | 福州大学 | Flux linkage closed-loop control method for electromagnetic mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202586261U (en) * | 2012-03-27 | 2012-12-05 | 杭州华光电气有限公司 | Breaker tripping and closing protective device |
| CN203721652U (en) * | 2014-01-13 | 2014-07-16 | 江苏现代电力科技股份有限公司 | High-voltage alternating-current circuit breaker controller |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3630032B2 (en) * | 1999-09-10 | 2005-03-16 | 松下電器産業株式会社 | Relay drive device |
| CN101813752A (en) * | 2010-04-20 | 2010-08-25 | 武汉新电电气技术有限责任公司 | High voltage switch dynamic characteristics tester |
| CN101826719B (en) * | 2010-05-29 | 2012-07-18 | 珠海欧力配电自动化系统有限公司 | Trip-proof lockout microcomputer protection system |
-
2016
- 2016-07-12 CN CN201610543922.6A patent/CN106098439B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202586261U (en) * | 2012-03-27 | 2012-12-05 | 杭州华光电气有限公司 | Breaker tripping and closing protective device |
| CN203721652U (en) * | 2014-01-13 | 2014-07-16 | 江苏现代电力科技股份有限公司 | High-voltage alternating-current circuit breaker controller |
Non-Patent Citations (1)
| Title |
|---|
| 智能交流接触器自校正控制技术;汤龙飞等;《中国电机工程学报》;20150320;第35卷(第6期);第1516-1523页 * |
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